采用数值计算和OrcaFlex软件对缆索张力函数的分析  

Analysis of cable tension function with numerical calculation and OrcaFlex software

作　　者：张大朋[1] 白勇[1] 姬芬芬 徐显明 朱克强[3] ZHANG Dapeng;BAI Yong;JI Fenfen;XU Xianming;ZHU Keqiang(College of Civil Engineering and Architecture,Zhejiang University, Hangzhou 310058, China;Qingdao Hanhe Cable Co.,Ltd., Qingdao 266102, China;Faculty of Maritime and Transportation,Ningbo University, Ningbo 315211, China)

机构地区：[1]浙江大学建工学院,浙江杭州310058 [2]青岛汉缆股份有限公司,山东青岛266102 [3]宁波大学海运学院,浙江宁波315211

出　　处：《石油工程建设》2019年第2期11-15,共5页Petroleum Engineering Construction

基　　金：长江学者和创新团队发展计划资助项目(IRT0734);国家自然科学基金资助项目(11272160);近岸孔隙结构物内流体运动特征的SPH数值模拟研究(Q16E090001)

摘　　要：采用数值计算的四阶龙格库塔法和OrcaFlex软件的凝集质量法分别对重型缆在定常拖曳状态下的缆索张力函数进行分析计算得到两组曲线,并对其进行对比,由此得出流速、重力角和缆索角对张力函数的影响,得到了确定缆索张力函数的一种实用方法。研究表明:在解决缆索张力函数问题时,采用Orca Flex软件的凝集质量法是一个很好的选择,因此工程应用中可以运用OrcaFlex软件对缆索进行设计和分析;而张力函数能够确定缆索的几何形状、张力以及拖体相对于原点的位置。To obtain the tension function of the heavy cable in the constant drag condition, the numerical calculation (forth-order Runge-Kutta mathod) and OrcaFlex software(lumped mass method) were used. The two groups of curves were obtained and the contrast between the two groups of curves were studied. Thus the effects of the current velocity, the gravity angle and the cable's angle on the tension function were obtained. The practical method to determine the cable function was obtained. It is shown that the lumped mass method used by OrcaFlex is a better choice in solving the tension function problem. So OrcaFlex can be applied in engineering project for cable design and analysis. The tension function can determine the geometric shape and the tension of cable and the position of towed fish.

关 键 词：重型缆 张力函数 数值计算 OrcaFlex软件 

分 类 号：U667.4[交通运输工程—船舶及航道工程]